.sidebar{
    position:fixed;
    top:60px;
    left:0;
    width:190px;
    height:calc(100vh - 60px);
    background:#1f2937;
    overflow-y:auto;
    transition:.3s;
}

.sidebar.collapsed{
    width:70px;
}

.sidebar a{
    display:flex;
    align-items:center;
    gap:15px;
    color:#fff;
    text-decoration:none;
    padding:14px 20px;
}

.sidebar a:hover{
    background:#374151;
}

.sidebar i{
    min-width:25px;
    text-align:center;
}

.sidebar.collapsed span{
    display:none;
}

.dropdown-content{
    display:none;
    background:#111827;
}

.dropdown:hover .dropdown-content{
    display:block;
}

.dropdown-content a{
    padding-left:50px;
}

.sidebar.collapsed .dropdown-content{
    display:none !important;
}

/* Content Area */

.main-content{
    margin-left:200px;
    margin-top:70px;
    width:calc(100% - 200px);
    padding:20px;
    box-sizing:border-box;
    overflow-x:hidden;
    transition:0.3s;
}

.main-content.expanded{
    margin-left:70px;
    width:calc(100% - 70px);
}


body{
    margin:0;
    padding-top:60px; /* same as header height */
}